Brake-rod jaw



s. H. CAMPBELL.

BRAKE ROD JAW.

APPLICATION. FILED JULY 9, 1920.

1,391,716. mum-186m. 2 ,1921.

Fig.1.

INVENTOR .S.H.CAMPBELL IIIIIIIIH 1i Original application filedbctober 15'To all w ham it may concern:

Be it= known that I, STERLING H. CAMP- BELL, ica, residing at the cityof St. Louis, State of Missouri, United States :of America, haveinvented certain new and useful Brake-Rod Jaws, of which the followingis such a full, clear, and exact description as will enable any oneskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings,

7 forming part of this specification.

My invention relates to a brake rod aw and more particularly to a forgedmetal brake rod jaw of the nonwelding type.

One object of my invention is the production of a suitable forged metalblank from which the brake rod jaw may be formed by boring or punchingpin eyes and rod eyes 1n the blank. Another object of my invention is toso form a blank that one size and shape of blank may be utilized toproduce brake rod jaws for varying sizes of brake rods.

In the accompanying drawings which illustrate two forms of brake rodjaws made in accordance with my invention, Figure 1 is a side view ofthe blank for producing my preferred form of brake rod jaw, Fig. 2 is anedge view of the same, Fig. 3 is a longitudinal section of the completedjaw, the brake rod being shown in position. Fig. 4; is an end view ofthe part shown in Fig. 8. Fig. 5 is a plan view of a blank for producinga modified form of jaw. Fig. 6 is a section taken on the line 6-6 ofFig. 5, Fig. 7 is a side view of the completed jaw formed from theblanks shown in Figs. 5 and 6, the brake rod being shownin position, andFig. 8 is an edge view of the jaw shown in Fig. 7, the brake rod beingomitted.

Referring first to Figs. 1 to 1 inclusive, 10 indicates a rod base whichhas formed integral with it a pair of arms 11 each terminating in anenlarged end 12 preferably circular in shape. formed integral therewithis a rod seat 13. All the parts of the blank taper from a centraldividing line 14, so that the forming die may have the necessary draw,and come quently the central parts of the enlarged ends 12 projectbeyond the sides of the arms 11 as indicated at 15 in Fig. 2. Thissurplus metal, however, is removed when the pin eyes 16 are formed inthe ends 11 by punching or boring, as indicated by the dotted lines inFig. 4. 17 are rod eyes which are a citizen of the'United'States ofAmer- Situated between the arms 11 andism-serial Ne. so,e44. Divid dand. this application filed iuiy 9, 1920. seria1{m.394,929.- j l formedin the rod base 10 and adapted to receive the twoportions of the brakerod 18 resulting fromtheformation of the return bend 19 which seatsagainstthe rod seat 18. The rod base 10 is made of such size and shapethat various sized rod eyes 17 may be formed therein to coooperate withthe same rod seat 13 so that one form. and sizeof blank may be used toproduce rod jaw sfor rods of varying sizes. The part 20-of the rod baselying between the two rod eyes 17 forms a rod bending support at oneside of recesses 21 into whicha portion of therod 18 is adapted to bebent, the rod seat 13 forming a rod bending support at the other side ofsaid recesses. By striking the rod 18 at the point 22 with a suitabletool, the rod is bent to the recess 21 thus efilectively preventmg itsretrograde movement relative to the In Figs. 5 to 8, I have shown amodified form of brake rod jaw which is formed from a blank forged outof flat sheet metal as shown in Fig. 5. In this form of aw the pin eyes16 and rod eyes 17 are formed during the operation of forging the blankand at the same time openings 23 are formed in the blank to receive abolt or rivet to form I Specification of Letters Patentd se t "27- a rodseat 2 1 in lieu of the integral rod seat .85

13 of the form of jaw hereinbefore described. In this formof jaw theopen space 25 between the part 20 of the rod base and the. rod seat 2aforms the recess into which a portion of the rod is adapted to be bentby striking it at the point 22, to prevent its retrograde movementrelative to the jaw.

This application is a division of application'Serial No. 330,94A, filedOct. 15, 1919.

Having fully described my invention, whatI claim as new and desire tosecureby Letters Patent of the United States is:

1. A forged metal blank for forming brake rod jaws, comprising a pair ofarms terminating in enlarged ends for the pin eyes, said ends havingtheir central parts extendingbeyond the sides of thearms, said a pair ofarms integral with said base, all

parts of said blank tapering from a central parting line. V

3. A forged metal blank for forming b ake rod jaws, comprising a rodbase and a g y y y 1,391,716

pair of integral arms terminating in enceive rods of varying --diameter,and a rod 10 larged ends for the pin eyes, all parts ofsaid base formedintegral-with said arms and blank tapering from a central parting line,adapted: to have rod eyes of varying diamthe surplus metal of theenlarged en dsbeing eters formed therein, each to completely sur- 5adapted to be removed by the perforation of round one side only of a rod100p.

' said ends to produce the pin eyes. In testimony whereof, I'havehereiinto set 15 V 4:. A forged metalhblank for forming: my handandafiixed my seal. a; y H brake rod jaws, comprising a pair of arms, v arod seat betweensaid arms adapted to 11 Sm QL 4 4 m: ll 1

